NET cONTENT & SHELF LIFE--120g and 365 days will be subjected to packing instruction, please keep it in a dry & cool place, avoid the direct sunshine or moisture and seal well. TEcHNOLOgIcAL PROcESS--grind the soybeans into soymilk, then scrape the thin layer of soybean oil on top of soybean milk with string. Then dry in the sun, that is dried tofu..